Includes the T40, T41, T42, T43,T400 and associated "p" series (for "performance"; e.g., T43p). A typical T4x weighs 2.2 kg (4.9 lb), slightly less than the 600 series, and features an Intel Pentium M (Dothan) Processor, a 14.1 or 15 inch LCD (XGA or SXGA+), an integrated GPU (Intel Graphics Media Accelerator 900) or a discrete GPU (ATI Mobility Radeon 7500, 9000, X300, ATI Mobility FireGL 9000, FireGL 9600, FireGL T2 and FireGL V3200), and a hard drive ranging in size from 30 to 100 GB with the Active Protection System to protect the hard drive (T41 and later models). "p" (mobile workstation) models are also available with a 14" SXGA+ or a 15 inch UXGA FlexView display with wide viewing angle and high density IPS technology with resolutions up to 1600x1200. These 15 inch display models weigh slightly more than their lesser brethren, with optical drive and battery, at 2.7 kg (5.9 lb). Some T42 and T43 models feature a biometric security system with Integrated Fingerprint Reader.
 IBM ThinkPad T41 PM 1.6GHz Laptop DVD-ROM/512MB/40GB/XP  US $289.99
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 IBM TP T20 T21 T22 T23 T30 T40 T41T42 SERVICE MANUALS08 US $4.00
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